Answer the following questions; (a) What is the colour of iron (III) chloride precipitate? (b) What is the colour of iron (III) nitrate solution? What is the heat of solution (qsoln) for the neutralization reaction between NH3 and HCl?
(i) Phenolphthalein (pH range 8.3 - 10.0, colourless \rightarrow pink) (ii) Phenol red (pH range 4.4 - 6.2, red \rightarrow yellow) (iii) When choosing which indicator to use in a titration reaction, you should consider: a. what color you would like to see at the end...
The scientific study of matter's characteristics and behaviour is known as chemistry. Chemistry vocabulary and Chemistry glossary are different from the normal vocabulary. It is a branch of natural science that examines the building blocks of matter, including the atoms, molecules, and ions that mak...
Monobenzone, also called 4-(Benzyloxy)phenol and monobenzyl ether of hydroquinone (MBEH) is an organic chemical in the phenol family. It is used as a topical drug for medical depigmentation. It is a colourless solid that is classified as the monobenzyl ether of hydroquinone. Monobenzone is ...
Generally, this layer is green coloured. In bottom layer of PCB, all components are soldered through the hole and lead of components is known as bottom layer of PCB. Sometime, in top and/or bottom layer PCB is coated with green colour layer, which is known as solder mask. Solder Mask...
What is a Chemical Skin Peel?The use of Chemical Skin peels for rejuvenating skin is not a recent thing. In the early 1900s, saloons offered specialised chemical skin peels with secret ingredients. During the 1950s, phenol peels were made which could cause scarring or pigmentation at times....
Epoxy Colour: Various Shop Loctite Hysol Curing Time and Process for Epoxy Resin Uncured epoxy resins typically have poor heat resistance, chemical, and mechanical properties. Fortunately, you can transform these epoxy resin properties through curing, involving the reaction of resin with appropriate cura...
What is Liebermann test of phenol? While phenol is reacted with and concentrated it provides adeep green or blue colour which changes to red on dilution with water. While generated alkaline along with original green or blue colour is restored. This reaction is termed as Libermann՚s nitroso ...
Why is floral foam bad? When the foam is dry, the small dust particles that float into the air can be inhaled and cause harm to our respiratory system. Because Phenol and Formaldehyde are just two of the toxic chemicals contained in floral foam,excessive exposure to floral foam can be very...
Bronde hair is having a moment right now ‘I tried 16 blushers: Here's my honest thoughts’ I tried Sienna Miller’s skincare routine 29 beauty bosses share their go-to products 11 uses for Sudocrem: From acne to chaffing What to know about phenol peels, per experts ...